This paper is devoted to a detailed presentation of all aspects involved in a novel experimental technique to prove the effectiveness of an early streamer emission air terminal (ESEAT) versus a traditional Franklin rod. An experimental test using a novel method and associated with electrostatic simulation demonstrates the effectiveness of an ESEAT (Pix3-60 from Piorteh Company) versus a conventional Franklin rod in the SIAME laboratory of the University of Pau in France. This method consists of locating both the ESEAT and the Franklin rod together in the same configuration in accordance with the French Standard NFC 17-102 (09/2011). During tests, all discharges are recorded on the ESEAT from Piorteh Company when its rod is active.